package study.reggie.controller;


import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;
import study.reggie.common.R;
import study.reggie.pojo.Employee;
import study.reggie.service.EmployeeService;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {

    @Autowired
    private EmployeeService employeeService;


    /*
    * 员工登录
    * */
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){
        //1.将页面提交的密码password进行md5加密
        String password=DigestUtils.md5DigestAsHex(employee.getPassword().getBytes());

        //2.根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername,employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);

        //3.判断用户名是否查询到
        if(emp==null){
            return R.error("登陆失败,用户名错误！");
        }

        //4.密码比对
        if(!password.equals(emp.getPassword())){
            return R.error("登陆失败，密码错误！");
        }

        //5.查看员工状态是否被禁用
        if(emp.getStatus()==0){
            return R.error("登陆失败，账号已被封禁！");
        }

        //登陆成功,将员工id存入Session并返回登陆成功结果
        request.getSession().setAttribute("employee",emp.getId());
        return R.success(emp);
    }


    /*
    * 退出
    * */
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
        //清理Session中保存的当前登录员工的id
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }


    /*
    * 新增员工
    * */
    @PostMapping
    public R<String> save(HttpServletRequest request,@RequestBody Employee employee){
        //设置初始密码

        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
/*

        employee.setCreateTime(LocalDateTime.now());
        employee.setUpdateTime(LocalDateTime.now());

        Long empId = (Long) request.getSession().getAttribute("employee");
        employee.setCreateUser(empId);
        employee.setUpdateUser(empId);

*/
        employeeService.save(employee);
        return R.success("新增员工成功！");
    }

    /*
    * 分页查询
    * */
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){
        log.info("page= {},pageSize= {},name= {}",page,pageSize,name);

        //分页构造器
        Page pageInfo=new Page(page,pageSize);

        //条件构造器
        LambdaQueryWrapper<Employee> queryWrapper=new LambdaQueryWrapper();
        //添加过滤条件
        queryWrapper.like(StringUtils.isNotEmpty(name),Employee::getName,name);

        //添加降序排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);
        //执行查询
        employeeService.page(pageInfo,queryWrapper);

        return R.success(pageInfo);
    }

    /*
    * 根据id修改员工信息
    * */
    @PutMapping
    public R<String> update(HttpServletRequest request,@RequestBody Employee employee){
        log.info(employee.toString());
/*
        employee.setUpdateTime(LocalDateTime.now());
        employee.setUpdateUser((Long) request.getSession().getAttribute("employee"));
*/
        employeeService.updateById(employee);
        return R.success("修改成功！");
    }

    /*
    * 根据id查询员工信息
    * */
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
        log.info("根据id查询员工信息...");
        Employee employee = employeeService.getById(id);
        return R.success(employee);
    }
}
